android 抓取手机应用包名跟类名

        ActivityManager mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);        final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);        mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);        final PackageManager packageManager = getPackageManager();        List<ResolveInfo> apps = packageManager.queryIntentActivities(                mainIntent, 0);        for (int i = 0; i < apps.size(); i++) {            ResolveInfo info = apps.get(i);            Log.e("TAG", info.activityInfo.loadLabel(packageManager)                    + " pkgName "                    + info.activityInfo.applicationInfo.packageName + " className "                    + info.activityInfo.name);        }